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O2 Sensor connects to ?????
What does the O2 sensor connect to in a 965? Mine connects to nothing. There was some GM wiring harness for some aftermarket component that was not installed. Meaning I had a lot of wires going nowhere. What should it connect to?
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Kirk Crashed: Silver 1992 Turbo S2 Sold: '86 930 minor mods; '94 3.6 Turbo; '85 Euro 930 (3.2 Intake, Tec3r EFI, TwinPlug, Garrett Turbo, JE 8.1 Pistons, 505 rwhp) |
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04-06-2009, 07:13 AM
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Cynical Misanthrope
Join Date: Dec 2001
Location: Campbell, CA
Posts: 382
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I'm trying to remember where the 02 plug originates.
Does your 02 still have the OEM 3-prong round plug? Mine comes through the left firewall under the fuel accumulator.
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X-1, AFM744, Jon, '92 C2 Turbo JE 8:1 pistons, 964 cams, 38mm intakes ported/polished/twinplugged, ARP hardware, B&B headers/exhaust, 355whp. Full-blown GT35R 3.2 intake EFI pending... Where my misspent time and money is currently going. |
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04-06-2009, 11:23 AM
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Join Date: Apr 2007
Posts: 394
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They probably set the O2 with it unhooked and left it . I don,t use mine either.
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04-06-2009, 12:47 PM
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Yes, it does have a 3 prong round plug. Is it not needed for normal operation?
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Kirk Crashed: Silver 1992 Turbo S2 Sold: '86 930 minor mods; '94 3.6 Turbo; '85 Euro 930 (3.2 Intake, Tec3r EFI, TwinPlug, Garrett Turbo, JE 8.1 Pistons, 505 rwhp) |
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04-06-2009, 02:49 PM
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Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
Posts: 14,164
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No.
Quote:
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04-06-2009, 05:15 PM
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OK, after a little more digging around with the intercooler off we found the other end of the connector. Still don't know what all it connects to but it is connected now.
__________________
Kirk Crashed: Silver 1992 Turbo S2 Sold: '86 930 minor mods; '94 3.6 Turbo; '85 Euro 930 (3.2 Intake, Tec3r EFI, TwinPlug, Garrett Turbo, JE 8.1 Pistons, 505 rwhp) |
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04-06-2009, 06:23 PM
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Cynical Misanthrope
Join Date: Dec 2001
Location: Campbell, CA
Posts: 382
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Do you have the lambda control unit under the driver seat? Next to the K-Jetronic box... that's what the O2 sensor connects to ultimately.
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X-1, AFM744, Jon, '92 C2 Turbo JE 8:1 pistons, 964 cams, 38mm intakes ported/polished/twinplugged, ARP hardware, B&B headers/exhaust, 355whp. Full-blown GT35R 3.2 intake EFI pending... Where my misspent time and money is currently going. |
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04-06-2009, 08:54 PM
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Join Date: Jul 2006
Location: S. Florida
Posts: 7,249
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If the origonal narrow band oxygen sensor was unplugged the car has probably had the idle AFR or CO set with it disconnected.
Also the O2 sensor has a heating element inside that helps keep it clean and when left unplugged in a car that is driven the sensor may get filled with exhaust carbon and now it doesn't work anymore making it good for nothing other than plugging the hole it screws into. Sometimes removing them and heating the tip with a propane torch will clean the platinum part inside and bring them back to life. |
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04-07-2009, 09:26 AM
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Join Date: Apr 2007
Posts: 394
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If you set 02 and leave it un hooked and are worried about getting carbon on the tip, remove it and screw in a spare spark plug.
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04-09-2009, 03:49 AM
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1985 Porsche 930 3.3 turbo
